# 在 $HOME/.bashrc 加入： export PYTHONSTARTUP=xxx/python-cmd-startup.py
# python startup file  
import readline, rlcompleter, atexit, os  
# tab completion  
readline.parse_and_bind('tab: complete')  
# history file  
histfile = os.path.join(os.environ['HOME'], '.pythonhistory')  
try:  
readline.read_history_file(histfile)  
    except IOError:  
    pass  
atexit.register(readline.write_history_file, histfile)  
    del os, histfile, readline, rlcompleter  

